{"id":91152,"date":"2025-06-01T10:47:58","date_gmt":"2025-06-01T10:47:58","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91152"},"modified":"2025-06-01T10:47:58","modified_gmt":"2025-06-01T10:47:58","slug":"which-of-the-following-phenomena-might-have-influenced-the-evolution-o","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/","title":{"rendered":"Which of the following phenomena might have influenced the evolution o"},"content":{"rendered":"<p>Which of the following phenomena might have influenced the evolution of organisms?<\/p>\n<ul>\n<li>1. Continental drift<\/li>\n<li>2. Glacial cycles<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below.<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;Both 1 and 2&#8243; option4=&#8221;Neither 1 nor 2&#8243; correct=&#8221;option3&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC IAS &#8211; 2014<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2014.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2014\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct answer is C.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nBoth Continental drift (1) and Glacial cycles (2) are major geological and climatic phenomena that have profoundly influenced the evolution of organisms. Continental drift alters the distribution of landmasses and oceans, creating or removing physical barriers, changing climate patterns, and leading to the isolation or mixing of populations, which drives speciation and extinction. Glacial cycles cause significant changes in climate, sea levels, and habitats, leading to species migrations, adaptations, extinctions, and the formation of new species through the creation of refugia and altered selective pressures.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nThe theory of plate tectonics explains continental drift and is a cornerstone of modern geology. Glacial cycles have occurred repeatedly throughout Earth&#8217;s history, most notably during the Pleistocene epoch (the &#8216;Ice Age&#8217;).<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles Select the correct answer using the code given below. [amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;Both 1 and 2&#8243; option4=&#8221;Neither 1 nor 2&#8243; correct=&#8221;option3&#8243;] This question was previously asked in UPSC IAS &#8211; 2014 Download PDFAttempt Online The &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which of the following phenomena might have influenced the evolution o\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/#more-91152\">Detailed Solution<span class=\"screen-reader-text\">Which of the following phenomena might have influenced the evolution o<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1092],"tags":[1468,1117,1412],"class_list":["post-91152","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1468","tag-biology","tag-evolution-of-life","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which of the following phenomena might have influenced the evolution o<\/title>\n<meta name=\"description\" content=\"The correct answer is C. Both Continental drift (1) and Glacial cycles (2) are major geological and climatic phenomena that have profoundly influenced the evolution of organisms. Continental drift alters the distribution of landmasses and oceans, creating or removing physical barriers, changing climate patterns, and leading to the isolation or mixing of populations, which drives speciation and extinction. Glacial cycles cause significant changes in climate, sea levels, and habitats, leading to species migrations, adaptations, extinctions, and the formation of new species through the creation of refugia and altered selective pressures.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following phenomena might have influenced the evolution o\" \/>\n<meta property=\"og:description\" content=\"The correct answer is C. Both Continental drift (1) and Glacial cycles (2) are major geological and climatic phenomena that have profoundly influenced the evolution of organisms. Continental drift alters the distribution of landmasses and oceans, creating or removing physical barriers, changing climate patterns, and leading to the isolation or mixing of populations, which drives speciation and extinction. Glacial cycles cause significant changes in climate, sea levels, and habitats, leading to species migrations, adaptations, extinctions, and the formation of new species through the creation of refugia and altered selective pressures.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:47:58+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which of the following phenomena might have influenced the evolution o","description":"The correct answer is C. Both Continental drift (1) and Glacial cycles (2) are major geological and climatic phenomena that have profoundly influenced the evolution of organisms. Continental drift alters the distribution of landmasses and oceans, creating or removing physical barriers, changing climate patterns, and leading to the isolation or mixing of populations, which drives speciation and extinction. Glacial cycles cause significant changes in climate, sea levels, and habitats, leading to species migrations, adaptations, extinctions, and the formation of new species through the creation of refugia and altered selective pressures.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following phenomena might have influenced the evolution o","og_description":"The correct answer is C. Both Continental drift (1) and Glacial cycles (2) are major geological and climatic phenomena that have profoundly influenced the evolution of organisms. Continental drift alters the distribution of landmasses and oceans, creating or removing physical barriers, changing climate patterns, and leading to the isolation or mixing of populations, which drives speciation and extinction. Glacial cycles cause significant changes in climate, sea levels, and habitats, leading to species migrations, adaptations, extinctions, and the formation of new species through the creation of refugia and altered selective pressures.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:47:58+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/","name":"Which of the following phenomena might have influenced the evolution o","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:47:58+00:00","dateModified":"2025-06-01T10:47:58+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is C. Both Continental drift (1) and Glacial cycles (2) are major geological and climatic phenomena that have profoundly influenced the evolution of organisms. Continental drift alters the distribution of landmasses and oceans, creating or removing physical barriers, changing climate patterns, and leading to the isolation or mixing of populations, which drives speciation and extinction. Glacial cycles cause significant changes in climate, sea levels, and habitats, leading to species migrations, adaptations, extinctions, and the formation of new species through the creation of refugia and altered selective pressures.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-phenomena-might-have-influenced-the-evolution-o\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Which of the following phenomena might have influenced the evolution o"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=91152"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91152\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}